Governor



l. M. CRAFTS GOVERNOR Filed Oct. 28. 1927 3 Sheets Sheet l June 26,1928.

I. M. CRAFTS I eovmmoa Patented June 26, 1928.

- 1,674,950 PATE T carrot.

M; oaarrsor Postman, commander, assrenon r0 rim melamine 'eoysanoaoo.,.'or 1 -1 oITI;AI fD, commences, a co -remains.

' GOVERNOR.

Application fiitd oeaiber see; 1927. Serial No. 22 3335915This-invention relates to" an improx' ement in governors, andparticularly togovernors of the Pickering type, that is, governorscomprising two flanges connected together by springs, with weightssecured to the springs, so that under the action of centrifugal forcethe weights, moving outward, will bow the springs and move one of theflanges to control the mechanism for which the governor is intended. Insome uses of governors, as, for instance, in Diesel engines, the controlvalve mechanism is of such a nature that power, greatly in excess ofthat required for an ordinary throttling valve, is necessary. It hasbeen found that the ordinary type of governor designed for steam-engineuse is not sufficiently powerful, with small variations in speed, tocontrol an engine of the Diesel type.

The object of this invention is to provide a governor which will answerthe peculiar requirements of enginesof the Diesel type and in othercases where power is required with small variations in speed, and, theinvention consists in a governor having certain details of constructionas will be hereinafter recited in the claims.

In the accompanying drawings: V

Fig. 1 is a side view of a governor constructed in accordance with myinvention, the casing being partly in vertical section to illustrate thegovernor mechanism;

Fig. 2 is a sectional view on the line 22 of Fig. 1 enlarged;

Fig. 3 is a vertical central section of the governor on the line 33 ofFig. 2, with the parts in the position of rest;

Fig. 4 is a similar view with the springs flexed as under pressure;

Fig. 5 is a perspective view'of one of the weight-plates detached; and

Fig. 6 is a perspective view of the spindlesleeve detached.

In carrying out my invention, I employ a governor similar in type to thePickering governor in that it includes an upper flange 10 and lowerflange 11, one of the flanges herein illustrated as 10 being pinned tothe spindle 12, the other flange being loosely mounted thereon forreciprocation, and these two flanges are connected together by springs13. Upon the spindle is a sleeve 14 formed with ahead 15 in which ismounted radially-arranged three equally-spaced Setting over thescrew-threaded pins 16.

pins 16, ii'isid'e'the springs 13', are plates 17 preferably ronnedwidrbosses 18 for 'the purpose as hereinafter described. Secured tothesprings are weights lt), and these are secured in place by screws 20extending through the plates and into the weights. These weights havelarge central chambers 21 in which helical springs 22 are placed,

these springs bearing against the outer faces of the springs 13 andagainst an adjustingnut 23 turned onto the outer ends of the pins 16.Upon the pins, between the nut and 7 spring, are adjustable stops 24. Asherein shown, the weights and springs are enclosed within a casing 25,the top 26 of which forms a bearing for one end of the spindle. When thespindle is revolved, centrifugal force will move the weights outward.The springs 13, which ordinarily entirely control the weights in thiscase, are used to support the weights and to transmit the radial motionof weights to a reciprocating motion at the loose flange. Their outwardmovement undcr centrifugal force is now controlled by the springs 22,the tension of which is readily adjusted for any particular purpose. Asthe weights move outward, one of the flanges moves toward the other, andthe sleeve 14 rides upon the spindle in the same direction. Preferablyand as herein shown, the adjacent faces of the plates and weights willbe formed with beveled surfaces 27 and 28, to avoid sharp bending of thesprings. In case a spring 22 should break, the outward movement of thatweight will be limited by the engagement of the boss 18 with the stop24:.

I thus produce, in a very simple manner, a governor extremely sensitiveand powerful with small variations in speed.

I claim:

1. A governor, comprising a spindle, flanges mounted thereon andconnected together by springs, a sleeve on said spindle,radially-arranged pins mounted in said sleeve, weights secured to thesprings and including plates inside the springs, means for clamping theweights to the'spring, said weights formed with axial chambers through 1which the pins extend, springs in said cham bers, and a nut mounted onthe outer end of the pins and adapted to adjust the tension of the saidsprings.

2. A governor, comprising a spindle, flanges mounted thereon andconnected together by springs, a sleeve on said spindle,

radially-arranged pins mounted in said sleeve, weights secured to thesprings and inon the outer end of the pins and adapted to adjust thetension of the said springs.

A governor, comprising av spindle,

flanges mounted thereon and connected to-- gether b-ysprings, a sleeveon said spindle, radially-arranged pins mounted in said sleeve, Weightssecured to the springs and including plates inside the springs, saidplates formed With centrally-arranged bosses, means for clamping theWeights to the spring, said Weights formed With axial chambers throughWhich the pins extend, springs in said chambers, a nut mounted on theouter end of the pins and adapted to adjust the tension of the saidsprings, and a stop mounted on said pins. r

In testimony whereof, I have signed this specification.

IRVING M. CRAFTS.

